2011 Chevrolet Volt Owner's Manual - Page 338

9-36 Driving and Operating EPB Release To release the EPB, place the vehicle in ON/RUN, apply and hold the brake pedal, and push down momentarily on the Y switch. If attempting to release the EPB without the brake pedal applied, a chime will sound, and the DIC message STEP ON BRAKE TO RELEASE PARK BRAKE will be displayed. The EPB is released when the Electric Parking Brake Light is off. If the Service Electric Parking Brake Light is on, the EPB has detected a system problem, and is operating with reduced functionality. To release the EPB when this light is on, push down on the Y switch and hold it in the down position. EPB release may take a longer period of time than normal when this light is on. Continue to hold the Y switch until the Electric Parking Brake Light is off. If the light is on, see your dealer. Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the Electric Parking Brake Light is off before driving. To apply the EPB when this light is on, lift up on the Y switch and hold it in the up position. Full application of the parking brake by the EPB system may take a longer period of time than normal when this light is on. Continue to hold the Y switch until the Electric Parking Brake Light remains on. If the Service Electric Parking Brake Light is on, see your dealer. If the EPB fails to apply, the rear wheels should be blocked to prevent vehicle movement. For maximum EPB force when parking on a hill, pull the EPB switch twice. Automatic EPB Release The EPB will automatically release if the vehicle is running, placed into gear, and an attempt is made to drive away. Avoid rapid acceleration when the EPB is applied, to preserve parking brake lining life. See Electric Parking Brake Light on page 5‑25, Service Electric Parking Brake Light on page 5‑25, and Brake System Messages on page 5‑46.